Blue Violet vs Cultist Purple

How close are they?

ΔE 12.7, fair: the same colour family, but not a straight swap. Cultist Purple is a little darker, more saturated than Blue Violet.

Can I use Cultist Purple instead of Blue Violet?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Cultist Purple is a little darker, more saturated than Blue Violet.

Can I use Blue Violet instead of Cultist Purple?

The same difference applies the other way round: Blue Violet is a little lighter, more muted.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.